Whistle



FIG. 1 is a perspective view of a whistle in accordance with our new design;

FIG. 2 is a side elevational view thereof, the opposite side being substantially identical;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a perspective view of a modified embodiment of the whistle in accordance with our design. 

The ornamental design for a whistle, as shown and described. 